| 摘要 |
PURPOSE:To obtain a toner which has excellent offset preventive performance and low-temp. fixability, does not weld to a stencil printing master in a photoengraving process for said meter and has an excellent property to prevent staining of PVC products by using a specific resin and copolymer as a binder resin of a toner for electrostatic latent images contg. at least the binder resin and coloring agent. CONSTITUTION:A polyester resin and styrene/methylacrylate copolymer are used as the binder resin of the toner for electrostatic latent images contg. at least the binder resin and coloring agent. The polyester resin consists of dihydric alcohol and dibasic acid and has preferably 8,000-16,000wt. average mol.wt., 50-65 deg.C glass transition temp., and 15<= acid value. The styrene/methylacrylate copolymer having 200,000-500,000wt. average mol.wt., 15-50% gel content and 55-70 deg.C glass transition temp. is preferable. |
